| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| PETRELLA VINCENT K | Director | 600 SOUTH AIRPORT ROAD, MANSFIELD | Vincent K. Petrella BY: /s/Brigette A. Burnell Attorney-in-Fact | 11 Feb 2026 | 0001276410 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | GRC | Common Stock | 12,812 | 31 Dec 2025 | Direct | ||||||
| holding | GRC | Common Stock | 2,700 | 31 Dec 2025 | By Margaret A Petrella 2020 Irrevocable Trust |